To check whether CloudFlare is active on the website you need to first go to www.webpagetest.org and check out your website speed.
Enter your website name in the box provided below and click Start Test as shown in the snapshot given below:
After clicking Start Test, you will come across the below screen, where you need to click on “X – Effective use of CDN”.
After clicking the X link above, you will get web page performance results as shown below:
If you see ‘CloudFlare’ after the name of your domain, it means that the static contents of your website are served by CloudFlare. This verifies that your website is active on CloudFlare.
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